Video editing is one of the most demanding tasks you can execute on a computer. A modern video-editing program such as requires high performance from the processor, RAM memory, GPU (if using GPU acceleration), as well as storage drives. Choosing a fast storage solution can be a little tougher than picking the fastest computer processor, as there are more tradeoffs involved. The largest drives aren’t always the fastest, and speeds can vary a great deal. This guide was created to help you choose the right storage drive (or drives) for your editing needs, from the small to the large.

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How much bandwidth do you need? 'The first step in choosing a drive is to determine how much storage space you need, as well as how fast your data can be stored and retrieved.' The first step in choosing a drive is to determine how much storage space you need, as well as how quickly your data can be stored and retrieved. The biggest determining factor is what codec and resolution you will be editing in primarily, since the amount of space that different video codecs occupy varies widely. 1080p ProRes HQ, a popular editing codec, will set you back about 112GB an hour, whereas 1080p AVCHD only takes up about 11GB. It's also important not to confuse bits and bytes. Most codecs rate their speed in bits per second, whereas most hard drives publish their speeds in bytes per second.

XDCAM EX's 35Mb/s is actually only 4.5MB/s. A handy tool for determining the amount of bandwidth you need is the AJA DataCalc app, which is available for Windows and Mac at.  Make fonts in outlook for mac preview pane. It's also available for iOS in the.

This tool lets you pick the codec you will be using, and it tells you how much bandwidth a single track of that codec needs in bytes per second. Once you know how much bandwidth a single track of the codec requires, your next step is to determine how many tracks you are going to need to play back at once. If you will only be doing simple editing with some transitions and text overlays, then twice the bandwidth is probably enough. However, if you plan on doing multi-camera cutting in real time, or using a large number of layers simultaneously, you are going to need far more. Below are a few popular codecs, as well as the amounts of bandwidth they require: • AVCHD 1080p at 30 fps - 3MB/s • XDCAM EX 1080p at 30 fps - 4.5MB/s, • ProRes 422 1080p at 30 fps - 21MB/s • ProRes HQ 4K at 24 fps - 106MB/s Single 3.5' drives If you will be editing HD content without a huge number of tracks, then a high-performance 3.5' drive will probably be fast enough to meet your needs. Current high-end 7200 rpm 3.5' drives are able to reliably deliver speeds at 150MB/s or higher, in capacities as high as 4TB, which is enough to play back numerous tracks of lightly compressed video, such as DnxHD or ProRes.